A self-resetting energy-dissipating cable support system for multi-story steel frame structures

Abstract

The invention provides a self-restoration energy-consuming cable support system for a multi-high-layer steel frame structure. The self-restoration energy-consuming cable support system comprises cable supports, support energy-consuming devices, connecting base plates and the like. Each cable support comprises a long cable and two short cables. Each support energy-consuming device comprises a large U-shaped notch, a small U-shaped notch, slipping high-strength bolt groups on the two sides of the corresponding cable support, energy-consuming steel ribs or steel rods, a pedestal base plate, steel rib and steel cable end socket anchorage devices and pedestal anchoring bolts. Each support cable is in series connection with the corresponding support energy-consuming device to form a self-restoration energy-consuming support system. The working mode of the support system is different from that of a traditional support, the energy-consuming devices are stored on the corners of a frame, and every two diagonal energy-consuming devices are in series connection with each other through the corresponding steel cable to form the X-shaped energy-consuming cable support system. Under the reciprocating load effect of the structure, X-shaped supports are alternatively pulled to be in a working state, and the structure can be pulled to an original position through internal force of the steel cables. According to the self-restoration energy-consuming cable support system for the multi-high-layer steel frame structure, through combination of high-strength cables, friction energy consumption, metal stretching and retracting energy consumption and self restoration, a good anti-knock self-restoration energy-consuming support is provided.

Description

technical field [0001] The invention relates to a self-resetting energy-dissipating cable support system of a multi-story steel frame structure, which belongs to the technical field of steel structure application. Background technique [0002] Steel structure has many advantages such as high material strength, high degree of industrialization and industrialization, short construction period, good seismic performance, and steel can be recycled and recycled. It is a green building that is conducive to energy saving, material saving, water saving and land saving. The application of steel structure is an important strategic measure of "hiding steel for the people". [0003] Steel frame support structure is one of the common structural forms applicable to multi-story steel structures. Under the action of horizontal earthquake, the support bears most of the horizontal load and enhances the lateral movement resistance of the structure. Under the action of tension and compression ...

AI Technical Summary

Problems solved by technology

Under the action of tension and compression reciprocating loads, the traditional steel support is prone to instability and failure and quits work, which affects the seismic performance of the structure

The use of anti-buckling braces can prevent the support from being unstable and damaged, but because the buckling-resistant braces have no self-resetting function, the residual deformation of the structure after the earthquake is large, and the repair cost is high. However, the buckling-resistant braces with self-resetting functions have complex structures

Supported by prestressed cables, the elastic recovery force of high-strength cables can be used to realize self-resetting after an earthquake. The energy consumption occurs on the main structure of the steel frame, but the residual deformation of the main structure is not easy to deal with, and the repair is also very difficult.

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